Cane-mill.



No. 638,629. Patented Dec. 5,. I899. G. W. FISHER.

CANE MILL.

(Application filed Sept. 7, 1898.)

'(No Model.) 3 Sheets Sheat 1.

Patented Dec. 5, I899. G. W. FISHER.

C A N E M l L L (Application filed Sept. 7, 1898.)

3 Sheets-Sheet 2.

(No Model.)

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No. 638,629. Patented Dec. 5,1899.

G. W. F B.

C A N E (Application filed Sept. 7, 1898.)

(No Model.) 3 sheafis shaet 3.

IWi LRL NITED STATES PATENT OFFICE.

GEORGE W. FISHER, OF ST. LOUIS, MISSOURI.

CANE-MILL.

SPECIFICATION forming part Of Letters Patent NO. 638,629, dated December5, 1899.

Application filed September 7,1898. Serial No. 690.412. (No model.)

To all whom it may concern:

Be it known that I, GEORGE W. FISHER, a citizen of the United States,residing at the city of St. Louis, in the State of Missouri, haveinvented a certain new and useful Improvement in Cane-Mills, of whichthe following is a full, clear, and exact description, reference beinghad to the accompanying drawings, forming part of this specification.

The object of my invention is to provide a roller cane-mill with aperfect working turnbar, onto which is fastened the trash knife orscraper that cleans the front roller and over which the trash orbaga'sse is transferred from the pressure-point between the front andtop rollers to the pressure-point between the top and back rollers, itbeing necessary in a properly-working trash knife or scraper that thefront or scraping edge shall be firmly held against the front rollertoprevent any fine bagasse from forcing its way between the roller and theedge of the scraper, thereby keeping the front roller clean andtransferring the whole product to the pressure-point between the top andback rollers. To accomplish this desired actiomthe seats or hearings inthe housing of the mill and in which the turn-bar rests must be a trueplane, so that in gradually forcing the turn-bar forward to maintain thecontact between the scraper and the front roller and from time to timeto take up the wear on the edge of the scraper the arc of perfectcontact of the scraper with the periphery of the roller shall alwaysremain the same, which would not be the case if the front edge of thescraper were raised or depressed from its original setting. To accomplish this,I provide in the housings of a three-roller mill the usualwindows with rest-blocks located therein and secured to the housing bybolts or otherwise, the upper surfaces of these rest-blocks beingdressed to a true plane with each other. Into the upper part of thewindows I fit and secure upper guide-blocks, the under or lower faces ofwhich are dressed to a true plane parallel with the upper surfaces ofthe rest-blocks below, so that the two ends of the turn-bar whenproperly planed and fitted in the space between the rest-blocks and theupper guideblocks may be moved at right angles with the axis of thefront roller, as it were, between permanent guides. As a means formoving the turn-bar I provide a lever at each side of the mill, theselevers being journaled to the upper guide-blocks and being perforated toreceive projections on the ends of the turnbar, so that by moving thefree ends of the levers the turn-bar may be adjusted toward the frontroller as its edge becomes worn, and thus a close fit be constantlymaintained between the scraper and periphery of the front roller.

My invention consists in features of novelty hereinafter fullydescribed, and pointed out in the claims.

Figure I is a side View of a cane-mill provided with my improvement, thejournals of the rollers being shown in section. Fig. II is a verticaltransverse section taken on line II II, Fig. III, the rollers beingshown in end view with the journals in section. Fig. III is a verticallongitudinal section of the machine, the turn-bar and rollers beingshown in elevation. Fig. IV is an enlarged detail perspective viewshowing one end of the turn-bar and scraper, part of the housing of themill, the rest-blocks, and the upper guide-blocks. Fig. V is a detailvertical section. Fig. VI is a View corresponding to Fig. I, butillustrating a modified means for adjusting the turn-bar. ing anothermodified meansfor adj usting the turn-bar. Fig. VIII is a detailperspective view of the modification shown in Fig. VII.

Referring to the drawings, 1 represents the housing of the mill; 2, thefront roller; 3, the top roller, and 4 the back roller. These parts areof the ordinary form of construction and require no explanation.

To provide an etfective, durable, and perfect working device fortransferring the bagasse from the front roller to the back roller is, asstated, the'ohject of my invention.

5 represents a turn-bar, so called for the reason that it, with thescraper, turns the direction of the bagasse from the peripheral face ofthe front roller. This bar is provided with ends 6, having fiat upperand lower faces and extending into windows or openings 7in the housingof the machine.

8 represents a scraper bolted or otherwise secured to the upper face ofthe turn-bar and the front edge of which is adapted to bear Fig. VII isa like view, but showagainst the peripheral surface of the front rollerand remove the bagasse therefrom, which passes over the scraper,entering between the upper and back rollers.

0 represents rest-blocks located in the windows 7 beneath the ends 6 ofthe turn-bar, as clearly shown in Fig. IV, and 10 represents upperguide-blocks located in the windows 7 above the ends 6 of the turn-bar.The upper faces of the rest-blocks and the lower faces of the upperguide-blocks, together with the upper and lower faces of the ends of theturn-bar, are planed off smooth on parallel lines, so as to produce aperfect fit and insure the movement of the tu rn-bar on a line at rightangles to the axis of the front roller. I prefer to bolt the rest blocksto the hou ing, as shown at 11, Fig. V, and the upper guide-blocks areprovided with ears 12, secured to the housing by means of bolts 13fitting in vertical slots 14, formed in the ears 12, so that the upperguide-blocks may be adjusted in a vertical direction when necessary toinsure a close fit upon the ends of the turn-bar. If desired, the partsmay be so proportioned as to permit the insertion of a number of thinplates 15 between the ends of the turn-bar and the rest-blocks, as shownin Fig. V, and should it be desired to lower the turn-bar slightly oneor more of these plates may be removed from between the ends of theturn-bar and the rest-blocks and be placed between the upper guideblocks and the housing.

The outer faces of the upper guide-blocks are provided with journals 16to receive the upper ends of levers 17,thelevers having elongatedperforations 18 to receive projections 19 on the ends of the turn-bar.The lower ends of the levers are provided with threaded rods 20,received by ears 21 on the housing of the machine. The rods are providedwith nuts 22, and by adjusting these nuts the free ends of the leversmay be moved to keep the front edge of the scraper constantly againstthe periphery of the front roller.

Instead of employing the levers for shifting the turn-bar and scraperthreaded rods 23 may be employed, as shown in Fig. VI, the ends of theturn-barbeing extended, as shown in Fig. VIII, to receive the rods. Theends of .the rods are threaded to receive nuts 25 on either side of ears24 on the housing through which the rods pass. Instead of having a pairof rods extending to opposite sides of the machine, as shown in Fig. VI,a single rod at each end of the turn-bar may be employed, as shown at26, Fig. VII, and as shown also in Fig. VIII,these rods extending in thedirection of the front roller and being threaded to receive nuts 27 oneither side of ears 28, formed on the journal-boxes of the front roller.

By providing the upper guide-blocks with fulcrums renewable journals arefurnished for thelevers, and these journals are brought very close tothe projections on the ends of the turn-bar, so that the purchaseobtained for the levers 17 is very great, and the turnbar can thus bemoved with case when it becomes necessary to adjust it, and by providingthe upper guide-blocks provision is afforded for a vertical adjustmentof the turnbar without changing the relative distance between thepivotal or fulcrum points of the levers and their points of connectionwith the turn-bar, and by providing these blocks above the ends of theturn-bar provision is also made for renewable upper bearings for theends of the turn-bar and bearings which can readily be planed off, so asto provide smooth parallel faces for contact with the upper faces of theends of the turn-bar. By providing the restblocks provision is made forrenewable bearings beneath the ends of the turn-bar, which can readilybe planed off to provide smooth contact-faces for the ends of theturn-bar,

and at the same time windows or openings of sufficient size may be madein the housing to permit of the withdrawal of thelarger central part ofthe turn-bar when necessary for the purpose of repair or for renewal.

I claim as my invention 1. A cane-mill comprising a housing havingwindows or openings formed in the sides there of, rest-blocks havingsmooth faces and located in the windows or openings, a turn-bar havingits ends formed with flat upper and lower faces and supported in thewindows or openings on the rest-blocks, the guidevblocks having smoothfaces and located in the windows or openings and surmounting theends ofthe turn-bar, and means whereby the .ends of the turn-bar are movedlaterally between the rest-blocks and the guide-blocks, for adjustingthe turn-bar; substantially as described.

2. A cane-mill comprisinga housing having windows or openings formed inthe sidesthereof, rest-blocks having smooth faces and located in thewindows or openings, a turn-bar having its ends formed with flat upperand lower faces and supported in the Windows or openings on therest-blocks, the verticallyadjustable guide-blocks having smooth facesand located in the windows or openings, and surmount-ing the ends of theturn-bar, and means whereby the ends of the turn-bar are moved laterallybetween the rest-blocks and the vertically-adj ustable guide-blocks foradjusting the turn-bar; substantially as described.

3. Acane-millcomprisingahousing having windows or openings formed in thesides thereof, rest-blocks having smooth faces and located in thewindows or openings, a turn-bar having its ends formed with flat upperand lower faces and supported in the windows or openings on therest-blocks,the guide-blocks having smooth faces and located in thewindows or openings and surmounting the ends of the turn-bar, meanswhereby the ends of the turn-bar are moved laterally between therest-blocks and the guide-blocks located above the ends of the turn-bar,for adjusting .the turn-bar, and means for raising and lowering theturn-bar; substantially as described.

4. A cane-mill comprising a housing having Windows or openings formed inthe sides thereof, rest-blocks located in the Windows or openings, aturn-bar having its ends formed with flat upper and lower faces,provided with end project-ions and supported in the windows or openingson the rest-blocks, the guide-blocks located in the windows or openingsand surmounting the ends of the turn-bar, levers pivoted to theguide-blocks and engaging with the projections on the ends of theturn-bar, whereby the ends of the turn-bar are moved laterally betweenthe rest blocks and the guide-blocks for adjusting the turn-bar, andmeans for adjusting thelevers; substantially as described.

5. A oane-mill comprising a housinghaving windows or openings formed inthe sides thereof, rest-blocks having smooth faces and located in thewindows or openings, aturn-bar having its ends formed with flat upperand lower faces and supported in the Windows or openings on therest-blocks, the guide-blocks having smooth faces and located in theWindows or openings and surmounting the ends of the turn-bar, and leverspivoted to the housing at one end and at the other end provided withmeans for adjusting the turn-bar, whereby the latter is held and movedonly in a horizontal direction; substantially as described.

GEO. WV. FISHER. In presence of E. S. KNIGHT, N. V. ALEXANDER.

